Uguu

ass - The superior self-hosted ShareX server. For use with clients such as ShareX (Windows), Flameshot (Linux), & MagicCap (Linux, macOS). ISC Nodejs/Docker

Chibisafe - File uploader service that aims to to be easy to use and set up. It accepts files, photos, documents, anything you imagine and gives you back a shareable link for you to send to others. MIT Docker/Nodejs

elixire - Simple yet advanced screenshot uploading and link shortening service. (Source Code, Clients) AGPL-3.0 Python

Files Sharing - Open Source and self-hosted files sharing application based on unique and temporary links. GPL-3.0 PHP/Docker

FileShelter - FileShelter is a self-hosted software that allows you to easily share files over the Internet. GPL-3.0 C++/deb

Gokapi - Lightweight server to share files, which expire after a set amount of downloads or days. Similar to the discontinued Firefox Send, with the difference that only the admin is allowed to upload files. GPL-3.0 Go/Docker

goploader - Easy file sharing with server-side encryption, curl/httpie/wget compliant. MIT Go

GoSƐ - GoSƐ is a modern file-uploader focusing on scalability and simplicity. It only depends on a S3 storage backend and hence scales horizontally without the need for additional databases or caches. Apache-2.0 Go/Docker